While Gibson, Dunn & Crutcher’s London office raided Ashurst for the British firm’s former leader Charles Geffen, the two firms also worked on opposite sides of Murphy Oil’s $2 billion sale of assets in Malaysia to an Indonesian oil and gas giant.

El Dorado, Ark.-based Murphy Oil, which has been slashing its overseas holdings in order to concentrate on the growing U.S. energy market, announced Tuesday that 30 percent of its Malaysian assets would be sold to Indonesian state-owned PT Pertamina Malaysia Eksplorasi Produksi, a subsidiary of Jakarta-based Pertamina.